Used as an intermediate in organic synthesis, particularly in pharmaceutical and agrochemical industries. The compound serves as a building block for introducing the 4-(chloromethyl)benzoyl group into more complex molecules. The chloromethyl functionality allows for further alkylation or nucleophilic substitution reactions, making it valuable in the preparation of esters, amides, and other derivatives. It is also employed in the synthesis of functionalized polymers and in materials science where controlled substitution patterns on aromatic rings are required. Its tert-butyl ester group can be easily deprotected under mild acidic conditions, enabling selective transformations in multi-step syntheses.